Louis wimmee



, UNITED -`STATES;

PATENT OFFICE.

LOUIS wIIvIMEE, E ELIZABETH, NEW-JERSEY, ASSIGNOE 10E ONE-HALE To ELIAS D. SMITH, or SAME PLAGE.

ORE cRUsHER AND PuLvERlz'lzR.

SPECIFICATION forming part of LettersPatent No.380.006, dated March 27, 1888.

Application filed Januaryr'l, 1887. Serial No. 225,729. (No model.) i

To aJZ whom it may concern:

Be it known that I, LOUIS WIMMER, a citizen of theUnited States, and a resident of Elizabeth, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Ore Crushers and Pulverizers, of which the following is a specification.

The present invention relates to a machine for crushing and pulverizing ores, stones, paints, artificial cements, sugar, and similar massive pieces of material.

The machine is so constructed that when the ore is first put into the hopper the former is Y first crushed into smaller pieces by the rotation of a crushingcylinder. The ore then passes between disks, which cause it to b'e crushed finer and finer, until it issues from the iiliachine in the form of powder, comparatively Figure l is a central vertical section, partly in elevation, and Fig. 2 is a side view, of the face of one of the stationary disks; and Fig. 3

is a detail sectional view of the grinding-disks, showing that the holes in the casing and in the grinding-disks fare madeconsiderably larger, so that the ore can pass from the casing b approximately as fast as it enters said casing.

The machine consists of the combination of a conical receiver, hopper, or mouth-piece, a; a casing, b, having an opening in which fits said hopper; a crushing-wheel,:c, consisting of two truncated cones having their opposite ends common, and each one having a projection, d, running along one of the elements of the cone; a ring, A, surrounding those ends of the cone which are common to each other, to divide the entering ore; a shaft, e, upon which is fastened rigidly said Wheel; a hole in each end of said casing, through which. passes the said shaft, the holes being larger than the shaft; disks f, secured to the ends of said casing,'and provided with holes which are concentric with the holes in the end of the casing, and with an inner set, g, of coarser teeth and an outer concentric set, h, of ner teeth, and other disks,

f', facing the first disks and having teeth of a cal springs n, which press both upon saidv frames and upon the disks f', the said bolts passing through the disks f The casing bin cross -section is cylindrical, the axis of the cylinder being coincident with that of Lthe main shaft e. To the casing b are also secured the hollow frames o, which= serve as supports for large rotating nuts p, which screw upon the, parts o, and which turn independently of the shaft. The nuts p press by means of the projections ql upon the frames k, and are provided with crank-handles r. The nuts p are made'rotatable upon `the parts o by means of screw-threads s. In the lowerportion of the frames o are exits t. The foundation a supports the casing, and it has two arms, o, which serve as bearings for the shaft. Ay-wheel, w, (partially shown,) is located upon the other end of the shaft..-.- The ends of the casing b, disks f, and the hollow. frame o are secured together rigidly by means of suitable bolts passing through the little holes shown in Fig. 2. The disks f are loose upon the shaft, but are rotatable with the shaft, because of the ridgefor projection 13 passing through its hu'b. The

bolts m pass through suitable holes (not shown) The object of the pulley a: is that, a propel- 9o ling-belt being placed upon it, the machine may be operated. y

By means of the two independent sets of pulverizing-disks at the ends of the casing b, it is evident that two grades of ineness may be obtained simultaneously from the same machine by properly manipulating the handles 'or cranks 1'. l f

When the ore or similar. material is placed in the mouth-piece, and when the machine is operated from the driving-pulley, the projections dvcause it'to be broken into Smaller pieces, which are carried to other portions of the casings b. It is further broken by crushing against other pieces of ore and against other portions of the casing b, and it gradually fills the latter until it issues between the said coarser teeth and then through the said ner teeth, and finally through the exits t. The springs n yield when exceptionally large or hard pieces come between the disks, thereby preventing injury to the machine.

By turning the cranks r in one way or another the machine may be made to grind coarser or finer, as desired. The end holes of the casings and the holes in the disks f may pulverizing-disks, located at opposite ends of 3o the casing and receiving the materia-l therefrom, `substantially a's described.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 12th day of January, 1887.

y LOUIS WIMMER. Witnesses:

EDWARD P. THOMPSON, EDITH C. THOMPSON. 

